10th International Aerosol Conference
September 2 - September 7, 2018
America's Center Convention Complex
St. Louis, Missouri, USA

Abstract View

Graphene Nanosheets Produced via Controlled Detonation. Functionalities with Oxygen/Precursor Ratio

ARJUN NEPAL, Justin Wright, Stefan Bossmann, Christopher Sorensen, Kansas State University

Abstract Number: 786
Working Group: Combustion-Generated Aerosols: the Desirable and Undesirable

Abstract
Systematic studies of the controlled detonation method for the production of nanoscale graphene to determine the role of oxygen content in pre-detonated oxygen/precursor mixtures are presented. Various ratios of hydrocarbon (acetylene and ethylene) and oxygen are used. The resulting graphene is characterized with BET surface area and porosity, Raman and FTIR spectroscopy, TEM and etc. The specific surface area increases with oxygen content, consistent with Raman measurements that indicate less layering. Spectroscopic measurements of the ca. 10 msec detonation flash indicate black body temperatures are also affected by the oxygen/precursor ratio and overlaying emission lines hint at the mechanisms for the graphene production.